Back to quiz

6. what are the products of the citric acid cycle?

  • carbon dioxide, NADH and a little ATP
  • carbon dioxide, NADH and a little ADP
  • Oxygen, NADH and a little ATP
  • carbon dioxide, NAD and a little ATP

7. How many ATP molecules produced from the electron transport chain?

  • 36
  • 38
  • 2
  • none

8. What combines with oxaloacetate to produce citrate?

  • Oxygen
  • Acetyl Coenzyme A
  • Pyruvate
  • Acetyl Coenzyme B

9. What is the final hydrogen acceptor?

  • pyruvate
  • oxygen
  • glucose
  • carbon dioxide

10. where in the cell does the citric acid cycle take place?

  • ribosome
  • cytoplasm
  • matrix of the mitochondria
  • cristae of mitochondria

11. What transports hydrogen and high-energy electrons to the electron transport chain?

  • Oxygen
  • dehydrogenase
  • NAD
  • FAD

12. How many phosphates are in ATP?

  • 4
  • none
  • 3
  • 2

13. What is the name of the circular pathway of reactions, which Acetyl CoA enters?

  • citric acid cycle
  • lactate respiration
  • carbon dioxide cycle
  • electron transport chain

14. What flows through the inner mitochondrial membrane, causing part of ATP synthase to rotate?

  • enzymes
  • NADH
  • hydrogen ions
  • oxygen

15. Why is the first stage of glycolysis described as the energy investment stage?

  • 2 ATP molecules are made, to enable phosphorylation of glucose.
  • 2 ATP molecules are used up, to enable phosphorylation of glucose.
  • 36 ATP molecules are used up, to enable phosphorylation of carbon dioxide
  • 2 ATP molecules are made, to enable phosphorylation of pyruvate.

16. What is the conversion of glucose to pyruvate called?

  • Glycolysis
  • Lactate respiration
  • citric acid cycle
  • anaerobic respiration

17. what is the net gain of ATP from glycolysis?

  • 10 ATP
  • 2 ATP
  • 38 ATP
  • 4 ATP

18. Where does glycolysis take place in the cell?

  • cytoplasm
  • mitochondria
  • ribosome
  • matrix of mitochondria